RRDtool 1.4

RRDtool (Round Robin Database Tool) is the OpenSource industry standard, high performance data logging and graphing system for time series data. RRDtool can be easily integrated in shell scripts, perl, python, ruby, lua or tcl applications. The data analysis part of RRDtool is based on the ability to quickly generate graphical representations of the data values collected over a definable time period.